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8 Cups to Fluid Ounces

8 cups equals 64 fluid ounces using the cup to fl oz formula. Scroll down for the full calculation.

8 cup = 64 fl oz
cup × 8 = fl oz
Try: 3 cup to fl oz 7 cup to fl oz 9 cup to fl oz 13 cup to fl oz
8 cup is also
8 cup = 1.89 L 8 cup = 0.5 gal 8 cup = 1,892.71 mL 8 cup = 4 pt 8 cup = 2 qt 8 cup = 128 tbsp 8 cup = 384 tsp
cup
64 fl oz

Step-by-Step Calculation

cup × 8 = fl oz
  1. Start with 8 cup
  2. Multiply by 8: 8 × 8 = 64
  3. Result: 8 cup = 64 fl oz

This conversion factor (8) is the same for every cup to fluid ounce calculation.

Cup to Fluid Ounce Conversion Table

Cups (cup) Fluid Ounces (fl oz)
1 cup 8 fl oz
2 cup 16 fl oz
5 cup 40 fl oz
8 cup 64 fl oz
10 cup 80 fl oz
15 cup 120 fl oz
20 cup 160 fl oz
25 cup 200 fl oz
50 cup 400 fl oz
75 cup 600 fl oz
100 cup 800 fl oz
250 cup 2,000 fl oz
500 cup 4,000 fl oz
1,000 cup 8,000 fl oz
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Frequently Asked Questions

8 cups equals 64 fluid ounces.
The formula is: cup × 8 = fl oz. See the cup to fl oz formula page for worked examples.
Use the fluid ounces to cups converter. The reverse formula is: fl oz ÷ 8 = cup.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (cup × 8 = fl oz) is based on internationally defined standards. Displayed results are rounded for readability, while the calculator uses the full-precision factor.
person Written by Sean Day verified Reviewed by UnitCompare update Last updated Mar 28, 2026